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Finding the Fourth Proportional to 454,958.90, 682,373.55 and 155,453.30

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Solution

The fourth proportional to 454,958.90, 682,373.55 and 155,453.30 is: 233,157.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,958.90 : 682,373.55 = 155,453.30 : x
  2. Step 2: Convert to fraction form
    454,958.90/682,373.55 = 155,453.30/x
  3. Step 3: Cross multiply
    454,958.90x = 682,373.55 × 155,453.30
  4. Step 4: Simplify right side
    454,958.90x = 106,077,220,180.22
  5. Step 5: Solve for x
    x = 106,077,220,180.22/454,958.90
  6. Step 6: Final answer
    x = 233,157.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.